Spa Heater 4 kW VS M7 Balboa QCA 58104 with Sensors

58104 Balboa 4kw Spa Heater 230 volts. Rated at 4.0 kw, M7 type for Balboa VS Series plastic and metal spa packs as used in QCA Spas, Strong Spas, Dreammaker hot tubs and by other hot tub manufacturers.

Newest model replacement for Balboa 58104 BWG heater includes 2 built in sensors, tailpieces and new gaskets.

Free shipping. On Sale Now.

This 2 inch diameter flow through hot tub heater is 15" long. 

This type of 4 kilowatt heater is used in QCA spas and by other hot tub manufacturers that use a plastic or metal Balboa spa pack.

This 4 kW, 15", 2" x 2" spa heater is used in QCA spas and other brand hot tubs that use Balboa equipment.

For use in both plastic & metal Balboa spa packs, unlike older systems that use pressure switches, this heater has 2 built-in sensors which come with the heater.

Those sensors take the duties of hi limit and temperature sensing so no external pressure switch is needed with this type of control system.

This model 58104 Balboa heater includes the internal sensors.

INCLUDES: complete spa heater with two sensors, two heater split nuts mounted to heater, two tailpieces and 2 heater gaskets.

Hot Tub Heater Tube Replacement Part:

• No welds required on tube
• 316 stainless steel available
• Front mounted
• Easier to service
• Incoloy flow-through heater (15 inches long)
• Includes 2 x 2inch heater tailpieces with gaskets/o-rings

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Smart Sensor Technology:

• Both sensors are identical and interchangeable
• Sensors monitor each other via software to regulate heater function such as water flow and temperature
• Assures a proper and safe operating environment for the heating element
• Multiple high limit safety systems
• All safety functions are active 24/7
• Eliminates excessive heater cycling
• Automatically adapts to flow direction (although flow direction is usually the same on a hot tub)
• Detects flow restrictions such as a clogged filter or closed slice valve
• Minimizes calcium buildup on the heater element

M7 type heaters are found in QCA Spas, Caldera, Sundance, Cal Spas, Marquis, Coast, and more.

This heater is also used in some Dream Series spas such as the Riviera.  It operates at 1kw when used at 120 volt plug and play operation, but outputs the full 4kw when used in the 230 volt configuration.

For all 220 volt spas, this is a 4kw heater that mounts to Balboa Plastic style spa pak as used in QCA Spas and other brand hot tubs.  Heater part number 58104.

You may also need one or two of our heater straps which connect the heater to the spa pack terminals (sold separately).  If you need the 4kw heater with pressure switch, we offer the 50067. We also offer the complete spa pack including pack, circuit board and heater (VS501Z).

We also offer the heater plug assembly for mounting this heater into a BP Balboa spa pack if needed, see plug assembly  HYD48-0023B

This M7 heater type 58104 is compatible with M7 compatible Balboa control systems that are listed with any of these part numbers.

Connection is for 2 inch plumbing (2 inch inner diameter flex hose or pipe)

58104 heater is on sale now with free shipping.